#include<stdio.h>
struct Student 
{  int num;
   char name[20];
   float score;
};
int main() 
{struct Student stu[5]={{10101,"Zhang",78},{10103,"Wang",98.5},{10106,"Li",86}, {10108,"Ling",73.5},{10110,"Sun",100}};  
 struct Student temp;  
 const int n=5;  
 int i,j,k;  
 printf("The order is:\n");  
 for(i=0;i<n-1;i++) 
	{ k=i;
	  for(j=i+1;j<n;j++)
	  if(stu[j].score>stu[k].score)	 
	  k=j;
	  temp=stu[k];stu[k]=stu[i];stu[i]=temp;
    }  
    for(i=0;i<n;i++)
    printf("%6d%8s%6.2f\n",stu[i].num,stu[i].name,stu[i].score);
    printf("\n");
    return 0;
}
